Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference (한국측량학회:학술대회논문집)

Korean Society of Surveying, Geodesy, Photogrammetry and Cartography (한국측량학회)
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Adjustment of 1st order Level Network of Korea in 2006

우리나라 1등 수준망 조정(2006년)

  • 이창경 (군산대학교 공과대학 토목환경공학부) ;
  • 서용철 (부경대학교 환경.해양대학 위성정보공학과) ;
  • 송창현 (군산대학교 대학원 토목환경공학과) ;
  • 전부남 (국토지리정보원 측지과)
  • Published : 2007.04.19
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Abstract

The 1st order vertical network of Korea was adjusted in 1987 at first time. This is the second adjustment of the 1st order vertical network of Korea by National Geographic Information Institute. All the levelling data were acquired by digital level with invar staff. The number of 1st order level lines are 36, and 34 level lines comprise 11 circles of level network. Backward and forward error of a few level lines are larger than the regulations of NGII, Korea. Also, 3 circles of vertical network has circuit closure error that is exceed the regulation. As the result of 1st order vertical network adjustment, the reference standard error of the vertical network was $1.8mm/{\surd}km$.

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